JLG 1200SJP Operation And Safety Manual page 51

3. Platform Leveling Override
A three position switch allows the operator to
adjust the automatic self leveling system. This
switch is used to adjust platform level in situa-
tions such as ascending/descending a grade.
4. Axle Extend/Retract
Allows the operator to extend or retract
the axles. The axles can only be extended
or retracted while the machine is being
driven forward or reverse.
5. Horn
A push-type HORN switch supplies electrical
power to an audible warning device when pressed.
6.
Indicator Panel
The LED Indicator Panel contains indicator lights that signal
problem conditions or functions operating during machine
operation.
Within about 2 seconds of pulling the Power/Emergency
Stop switch out, the machine will perform a diagnostic
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SECTION 3 - MACHINE CONTROLS AND INDICATORS
check of the various electrical circuits, and if everything is
OK, the platform alarm will beep once. During this time the
lights on the indicator panel will also blink once as a bulb
check.
7.
Boom Control Select
Automatic Mode:
When the Boom Control is positioned to Auto-
matic, lift and telescope movements are coordi-
nated by the JLG control system and the
automatic platform leveling feature is active
during lift, telescope, swing, and drive movements.
NOTE:
• While operating lift up, the boom may also telescope out.
• While operating lift down, the boom may also telescope in.
• While operating swing or drive, the boom may lift up or lift
down.
• While operating telescope in, the boom may lift down when at
high boom angles and the creep light is flashing.
Manual Mode:
When the boom control is positioned to Man-
ual, lift and telescope movements are con-
trolled separately by the operator and the
automatic platform leveling feature is active
only during lift functions.
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